In recent years, inorganic perovskite materials have emerged as a great potential in optoelectronic and flexible nanogenerator applications. In this study, we have synthesized blue to green tunable photoluminescent (PL) inorganic CsPbX₃ (X-Cl/Br) perovskite nanocrystals (NCs) utilizing a heat treatment process at a temperature of 150 °C. The purity of the NC’s luminescence was analyzed utilizing PL spectroscopy and the pristine blue and green emissions were observed at a 365 nm wavelength under ultraviolet light. Furthermore, the NCs were embedded in a poly(D,L-lactide) (PDLLA) polymer matrix to fabricate flexible blue and green luminous CsPbX₃-PDLLA piezoelectric nanogenerators (CPX-PDLLA PENGs). The Fourier-transform infrared spectroscopy characterization of both CPX-PDLLA PENG devices further revealed that perovskite NCs were successfully encapsulated by the PDLLA polymer matrix. The fabricated perovskite based PENGs were tested by hand tapping motion at a 240 beats per minute load frequency to explore the alternating current electrical outputs. The results illustrated that the maximum open circuit voltage and short circuit current obtained for the green PL NCs (g-CPX NCs) incorporated PENG were 1.69 and 1.42 times higher, respectively, in contrast to the blue PL NCs (b-CPX NCs) incorporated PENG. In addition, both b-CPX and g-CPX PDLLA PENGs were tested against a range of resistance and the maximum power output obtained was ~335.44 and ~797.22 $\mu$W respectively with an active contact area of 31.67 cm² for all PENGs. The developed flexible g-CPX PDLLA PENG was able to light up 50 commercial light emitting diodes (1.5 V each) indicating the vast promising applications of the PDLLA-CPX PENG as a soft high-performance self-chargeable device.

近年来，无机钙钛矿材料已成为光电和柔性纳米发电机应用的巨大潜力。在这项研究中，我们利用 150 °C 温度下的热处理工艺合成了蓝绿色可调光致发光 (PL) 无机 CsPbX _{3 (X-Cl/Br) 钙钛矿纳米晶体 (NCs)。}使用 PL 光谱分析 NC 发光的纯度，并在紫外光下在 365 nm 波长处观察到原始的蓝色和绿色发射。此外，将NCs嵌入聚（D，L-丙交酯）（PDLLA）聚合物基质中以制造柔性蓝色和绿色发光CsPbX ₃-PDLLA压电纳米发电机（CPX-PDLLA PENGs）。两种 CPX-PDLLA PENG 器件的傅里叶变换红外光谱表征进一步表明，钙钛矿 NC 被 PDLLA 聚合物基质成功封装。制造的基于钙钛矿的 PENG 通过以每分钟 240 次的负载频率进行手敲运动进行测试，以探索交流电输出。结果表明，与合并的蓝色 PL NC（b-CPX NC）相比，合并 PENG 的绿色 PL NC（g-CPX NC）的最大开路电压和短路电流分别高出 1.69 倍和 1.42 倍。彭。此外，b-CPX 和 g-CPX PDLLA PENG 均针对一系列电阻进行了测试，获得的最大功率输出为 ~335.44 和 ~797.22$\mu$对于所有 PENG ，W 分别具有 31.67 cm ^{2的有效接触面积。}开发的柔性 g-CPX PDLLA PENG 能够点亮 50 个商用发光二极管（每个 1.5 V），表明 PDLLA-CPX PENG 作为软高性能自充电器件具有广阔的应用前景。